英和和英

Click the button

to press a button

to undo a button―unbutton one's coat

to sew on a button

A button comes undone―（靴のボタンなら）―A shoe comes unbuttoned.

a button for forward track skipping

a button on a coat

A button comes off.

fasten buttons

to finger a button―fumble a button

the buttons on a coat

A button comes undone

undo the buttons of

A button fell off.

undo a button [a zipper]

fasten with buttons

button one's blouse

A button has come off

a buttonhole

The top button of my overcoat came off.

to fasten a coat with buttons―button up a coat

My vest won't button up.

a button‐hole stitch

A button is off.

at the pressing of a button

a hole through which buttons are pushed

A button has come off.

The top button came away.

fasten (up) the buttons on one's coat

ornamented with many buttons